Rotor Track30 Spider & Axle

144mm bcd disc spider and 30mm track axle for Rotor ALDHU & VEGAST crank arms. 

Can be paired with any 144mm bcd track chainring of your choice (a Rotor chainring is not required).

Includes disc spider, axle & Rotor M10 Track steel chainring bolts.

 

ⓘ Professional assembly and installation using a torque wrench and following all published torque specifications is strongly recommended. 

Specifications

• 144mm bcd

• length: 165mm 170mm

• chainline: 43mm

• Q-factor: 140mm

• Rotor M10 steel chainring bolts included

• required bottom bracket: Rotor BSA30 Track (sold separately)

• color: black

• actual weight: 233g (disc, axle & bolts)

Bottom bracket compatibility

Rotor AHLDU and VEGAST Track cranks must be used with Rotor’s BSA30 Track bottom bracket, which has thinner external cups than all other outboard bottom brackets designed for use with a 30mm axle.

Using a bottom bracket with thicker cups may technically seem possible, but the back of the disc spider will contact the drive side cup once installed and the non-drive side cup won’t leave enough of the axle splines exposed to properly secure the left crank arm, damaging the mounting interface.